Keep console.log that are not called during compilation.

modules/@angular/examples/_common/e2e_util.ts

@@ -5,6 +5,7 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
+/* tslint:disable:no-console  */
 import * as webdriver from 'selenium-webdriver';
 declare var browser: any;
 declare var expect: any;
@@ -15,6 +16,7 @@ export function verifyNoBrowserErrors() {
     const errors: any[] = [];
     browserLog.filter(logEntry => {
       const msg = logEntry.message;
+      console.log('>> ' + msg);
       if (logEntry.level.value >= webdriver.logging.Level.INFO.value) {
         errors.push(msg);
       }